.header {
    min-height: 70px;
    margin: 0 auto;
    padding: 10px 0;
}

.header > .wrap {
    position: relative;
}

.header .logo {
    text-align: center;
    float: left;
    width: 150px;
    height: 50px;
    margin-top: 5px;
    color: #35b558;
    font-weight: 500;
}

.header .logo > span {
    display: inline-block;
}

.header .logo .logo-cn {
    font-size: 28px;
}

.header .logo .logo-en {
    position: relative;
    top: -4px;
    font-size: 13px;
}

.nav {
    position: relative;
    background: #fff;
    height: 42px;
    -webkit-box-shadow: rgba(0, 0, 0, .1) 0 1px 5px;
    -moz-box-shadow: rgba(0, 0, 0, .1) 0 1px 5px;
    box-shadow: rgba(0, 0, 0, .1) 0 1px 5px;
    margin-bottom: 10px;
}

.nav .menu {
    position: absolute;
    background: #fff;
}

.nav .menu > li {
    float: left;
}

.nav .menu li.home {
    padding-left: 250px;
}

.nav .menu li.all-course-wraper {
    position: absolute;
}

.nav .menu > li > a {
    text-decoration: none;
    display: block;
    width: 120px;
    font-size: 14px;
    color: #333;
    line-height: 42px;
    padding: 0;
    text-align: center;
}

.nav .menu .all-course {
    width: 248px;
    background: #40BB8A;
    color: #fff
}

.nav .menu .all-course-list {
    max-height: 310px;
    /*overflow-y: hidden;*/
}

.nav .menu .all-course-list li {
    position: relative;
    z-index: 100;
    width: 248px;
    height: 32px;
    line-height: 32px;
    /*box-sizing: border-box;*/
    overflow: visible;
    background: #fff;
    -webkit-box-shadow: rgba(0, 0, 0, .1) 0 1px 5px;
    -moz-box-shadow: rgba(0, 0, 0, .1) 0 1px 5px;
    box-shadow: rgba(0, 0, 0, .1) 0 1px 5px;
    border-bottom: 1px solid #f2f2f2;

}

.nav .menu .all-course-list li.hover {
    border: 1px solid #1cb177;
    border-right: 0;
    box-shadow: 0px 1px 1px #ddd;
}

.nav .menu .all-course-list li .arrow-right-hide {
    display: none;
}

.nav .menu .all-course-list li span {
    padding-left: 26px;
    display: block;
    height: 100%;
    overflow: hidden;
}

.nav .menu .all-course-list li a.item {
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 12px;
    color: #333;
    padding-right: 15px;
}

.nav .menu .all-course-list li a.item:last-child {
    padding-right: 0;
}

.nav .menu .all-course-list li a.key-item {
    font-weight: bold;
    color: #35b558;
}

.nav .menu li > a:not(.all-course):hover, a.item:hover, .nav .menu li > a.active {
    color: #35b558 !important;
}

a.item:hover {
    text-decoration: underline !important;
}

.item-details-container {
    display: block;
    padding: 0px 15px;
    position: absolute;
    top: -1px;
    left: 247px;
    z-index: 200;
    width: 500px;
    height: auto;
    min-height: 200px;
    overflow: visible;
    border: 1px solid #1cb177;
    background: #fff;
    box-shadow: 1px 1px 2px #ddd;
}

.item-details-container:after {
    display: block;
    content: "";
    clear: both;
}

.nav .menu li .item-details {

}

/*.item-details:hover*/
/*/!*.nav .menu li .hide-border:hover *!/*/
/*{*/
/*display: block;*/
/*}*/

.nav .menu li .item-details a {
    color: #555;
}

.nav .menu li .item-details-container .hide-border {
    display: block;
    height: 30px;
    width: 5px;
    position: absolute;
    top: 0;
    left: -5px;
    z-index: 300;
    background: #fff;
}

.nav .menu li .item-details .item-title {
    font-weight: 500;
    font-size: 14px;
    clear: both;
    padding: 14px 0 10px 10px;
    border-bottom: 1px solid #eee;
}

.item-details dl {
    clear: both;
    overflow: hidden;
    font-size: 12px;
    border-bottom: 1px solid #eee;
}

.item-details dt {
    font-weight: bold;
    float: left;
    width: 53px;
    height: 32px;
    overflow: hidden;
    text-align: center;
    margin-right: 15px;
}

.item-details dt a {
    line-height: 32px;
    padding: 2px 0 0 0;
    color: #1ab177 !important;
}

.item-details dd {
    float: left;
}

.item-details dd a {
    float: left;
    padding: 0 10px;
    margin: 9px 0;
    border-left: 1px solid #eee;
    line-height: 14px;
}